Word Origin & History
O.E. folc "common people, men, tribe, multitude," from P.Gmc. *folkom (cf. O.Fris. folk, M.Du. volc, Ger. Volk "people"), from P.Gmc. *fulka-, perhaps originally "host of warriors;" cf. O.N. folk "people," also "army, detachment;" and Lith. pulkas "crowd," O.C.S. pluku "division of an army," both believed
to have been borrowed from P.Gmc. Some have attempted, without success, to link the word to Gk. plethos "multitude;" L. plebs "people, mob," populus "people" or vulgus. Superseded in most senses by people.
"people of one's family," 1715, colloquial, from plural of folk